28068973536143 has 2 divisors, whose sum is σ = 28068973536144. Its totient is φ = 28068973536142.

The previous prime is 28068973536127. The next prime is 28068973536193. The reversal of 28068973536143 is 34163537986082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28068973536143 - 2⁴ = 28068973536127 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28068973536143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28068973536113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14034486768071 + 14034486768072.

It is an arithmetic number, because the mean of its divisors is an integer number (14034486768072).

It is a 2-persistent number, because it is pandigital, and so is 2⋅28068973536143 = 56137947072286, but 3⋅28068973536143 = 84206920608429 is not.

Almost surely, 2^{28068973536143} is an apocalyptic number.

28068973536143 is a deficient number, since it is larger than the sum of its proper divisors (1).

28068973536143 is an equidigital number, since it uses as much as digits as its factorization.

28068973536143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 156764160, while the sum is 65.

The spelling of 28068973536143 in words is "twenty-eight trillion, sixty-eight billion, nine hundred seventy-three million, five hundred thirty-six thousand, one hundred forty-three".